Utilisation of Inorganic Substrates by Alicyclobacillus - Like Strain FP1

Helen R. Watling; David M. Collinson; Felicity A. Perrot; Denis W. Shiers

doi:10.4028/www.scientific.net/AMR.1130.308

Paper Titles

Solution pH and Jarosite Management during Ferrous Iron Biooxidation in a Novel Packed-Column Bioreactor
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Metal Recovery and Exploitation of Lignite Ashes by Combined Physicochemical and Biotechnological Approaches
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Bioleaching of a Molybdenite Concentrate by Thermophilic Microorganisms in a New RELVA-RBAL 1 AIR LIFT Bio-Reactor
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Physical Peeling of Passivating Layers on Chalcopyrite Leached with Ferric Ion Using Small Alumina Balls
p.304

Utilisation of Inorganic Substrates by Alicyclobacillus - Like Strain FP1
p.308

Systems Biology of Acidophile Biofilms for Efficient Metal Extraction
p.312

A Study of Permeability and Diffusion at the Agglomerate-Scale in Heap (Bio)Leaching Systems
p.316

Bioreactor Process Optimization for Bioleaching of Fine-Grained Residues from Copper Smelting
p.321

Microstructure Evolution of Ore Particles during Bioleaching Based on X-Ray Micro-Computed Tomography Images
p.325

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1130Utilisation of Inorganic Substrates by...

Utilisation of Inorganic Substrates by Alicyclobacillus - Like Strain FP1

Abstract:

As Alicyclobacillus-like strain FP1 was isolated from copper heap process water (pH 1.5), this research was directed towards its bioleaching attributes, specifically ferrous ion (Fe (II)) and reduced inorganic sulfur compound (RISC) oxidation, and bioleaching of sulfide minerals. Strain FP1 oxidised iron (II) but not tetrathionate or elemental sulfur in growth media containing yeast extract as growth factor. The addition of tetrathionate (2.5 mM) suppressed iron (II) oxidation. Strain FP1 grew on pyrite, arsenopyrite, chalcopyrite, sphalerite and pentlandite in BSM-YE medium at 30 °C and pH 1.8 (35 days), enhancing Zn, Co (in cobaltiferous pyrite), Fe and As recovery, but not Cu or Ni, relative to abiotic controls.

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Periodical:

Advanced Materials Research (Volume 1130)

Pages:

308-311

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1130.308

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Online since:

November 2015

Authors:

Helen R. Watling, David M. Collinson, Felicity A. Perrot, Denis W. Shiers

Keywords:

Alicyclobacillus, Ferrous Oxidation, Heap Leaching, RISC

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